Provide cleaner message for collective manager being unreachable
Provide cleaner message for collective manager being unreachable

whowutwut/confluent,jjohnson42/confluent,xcat2/confluent,jjohnson42/confluent,jjohnson42/confluent,xcat2/confluent,xcat2/confluent,whowutwut/confluent,whowutwut/confluent,xcat2/confluent,jjohnson42/confluent,whowutwut/confluent,xcat2/confluent,jjohnson42/confluent